SPRINGFIELD — Police are investigating the city's 17th homicide of the year after a man was shot dead in the Forest Park neighborhood Thursday afternoon.

Police have not released a motive for the killing or the identity of the 28-year-old victim, who was fatally wounded outside a Sachem Street home shortly before 2 p.m.

Officers responded to a 1:56 p.m. ShotSpotter activation for six shots in the lower Forest Park neighborhood. When they arrived on Sachem Street, a cul-de-sac off Dickinson Street, they found the man lying near a home at the end of the block.

Preliminary reports indicated a light-green Nissan and gray two-door Honda were seen leaving the area after the shooting, but it was unknown if the gunfire came from either of those vehicles.

Police blocked off Sachem Street with yellow crime-scene tape as the department's homicide van arrived to investigate. Several evidence cones were placed in front of the home and near Dickinson Street.

Capt. Trent Duda and homicide detectives from the Springfield Police Major Crimes Unit are handling the investigation. Anyone with information about the incident is asked to call detectives at 413-787-6355.

On Nov. 1, a teenage boy was shot dead after leaving a Forest Park house party, becoming the city's 15th homicide victim this year. On Nov. 7, a Chinese food delivery driver who was fatally shot in Indian Orchard became the 16th victim.